The line parallel to the x-axis is given by:
Correct answer: C. y = c
- A. y = 0
- B. x = 0
- C. y = c
- D. x = c
Explanation
A line parallel to the x-axis is a horizontal line where the y-coordinate remains constant. This is represented by the equation y = c, where c is a constant value.Option A is incorrect because y=0 does not generalize the concept of a line parallel to the x-axis.Option B is incorrect because x=0 represents a vertical line parallel to the y-axis, not the x-axis.Option D is incorrect because x=c represents a vertical line, not a horizontal line parallel to the x-axis.
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About Quantitative Reasoning
Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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